git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/msp430_CrossWorks/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V8.2.0rc1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
   3     All rights reserved\r
   4 \r
   5     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     This file is part of the FreeRTOS distribution.\r
   8 \r
   9     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  10     the terms of the GNU General Public License (version 2) as published by the\r
  11     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  12 \r
  13     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  14     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  15     >>!   obliged to provide the source code for proprietary components     !<<\r
  16     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  17 \r
  18     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  19     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  20     FOR A PARTICULAR PURPOSE.  Full license text is available on the following\r
  21     link: http://www.freertos.org/a00114.html\r
  22 \r
  23     1 tab == 4 spaces!\r
  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
  27      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  28      *    not run, what could be wrong?".  Have you defined configASSERT()?  *\r
  29      *                                                                       *\r
  30      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
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  32     ***************************************************************************\r
  33 \r
  34     ***************************************************************************\r
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  45      *                                                                       *\r
  46     ***************************************************************************\r
  47 \r
  48     ***************************************************************************\r
  49      *                                                                       *\r
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  53      *   earlier than would otherwise be possible.  Richard Barry is both    *\r
  54      *   the architect and key author of FreeRTOS, and so also the world's   *\r
  55      *   leading authority on what is the world's most popular real time     *\r
  56      *   kernel for deeply embedded MCU designs.  Obtaining your training    *\r
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  60      *   by Richard Barry:  http://www.FreeRTOS.org/contact\r
  61      *                                                                       *\r
  62     ***************************************************************************\r
  63 \r
  64     ***************************************************************************\r
  65      *                                                                       *\r
  66      *    You are receiving this top quality software for free.  Please play *\r
  67      *    fair and reciprocate by reporting any suspected issues and         *\r
  68      *    participating in the community forum:                              *\r
  69      *    http://www.FreeRTOS.org/support                                    *\r
  70      *                                                                       *\r
  71      *    Thank you!                                                         *\r
  72      *                                                                       *\r
  73     ***************************************************************************\r
  74 \r
  75     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  76     license and Real Time Engineers Ltd. contact details.\r
  77 \r
  78     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  79     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  80     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  81 \r
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  84 \r
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  90     engineered and independently SIL3 certified version for use in safety and\r
  91     mission critical applications that require provable dependability.\r
  92 \r
  93     1 tab == 4 spaces!\r
  94 */\r
  95 \r
  96 /*-----------------------------------------------------------\r
  97  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  98  * is really operating on the LCD display.\r
  99  *-----------------------------------------------------------*/\r
 100 \r
 101 /*\r
 102  * This demo is configured to execute on the ES449 prototyping board from\r
 103  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
 104  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
 105  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
 106  * next LED 1, etc.\r
 107  *\r
 108  * There is a single genuine on board LED referenced as LED 10.\r
 109  */\r
 110 \r
 111 \r
 112 /* Scheduler includes. */\r
 113 #include "FreeRTOS.h"\r
 114 #include "task.h"\r
 115 \r
 116 /* Demo application includes. */\r
 117 #include "partest.h"\r
 118 \r
 119 /* Constants required to setup the LCD. */\r
 120 #define LCD_DIV_64 5\r
 121 \r
 122 /* Constants required to access the "LED's".  The LED segments are turned on\r
 123 and off to generate '*' characters. */\r
 124 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
 125 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
 126 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
 127 \r
 128 /* The LED number of the real on board LED, rather than a simulated LED. */\r
 129 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
 130 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
 131 \r
 132 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
 133 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
 134                                                                                                                                 ( unsigned char * )0xa2, \r
 135                                                                                                                                 ( unsigned char * )0xa0, \r
 136                                                                                                                                 ( unsigned char * )0x9e,\r
 137                                                                                                                                 ( unsigned char * )0x9c,\r
 138                                                                                                                                 ( unsigned char * )0x9a };\r
 139 \r
 140 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
 141                                                                                                                                 ( unsigned char * )0xa1, \r
 142                                                                                                                                 ( unsigned char * )0x9f, \r
 143                                                                                                                                 ( unsigned char * )0x9d,\r
 144                                                                                                                                 ( unsigned char * )0x9b,\r
 145                                                                                                                                 ( unsigned char * )0x99 };\r
 146 \r
 147 /*\r
 148  * Toggle the single genuine built in LED.\r
 149  */\r
 150 static void prvToggleOnBoardLED( void );\r
 151 \r
 152 /*-----------------------------------------------------------*/\r
 153 \r
 154 void vParTestInitialise( void )\r
 155 {\r
 156         /* Initialise the LCD hardware. */\r
 157 \r
 158         /* Used for the onboard LED. */\r
 159         P1DIR = 0x01;\r
 160 \r
 161         // Setup Basic Timer for LCD operation\r
 162         BTCTL = (LCD_DIV_64+0x23);\r
 163 \r
 164         // Setup port functions\r
 165         P1SEL = 0x32;\r
 166         P2SEL = 0x00;\r
 167         P3SEL = 0x00;\r
 168         P4SEL = 0xFC;\r
 169         P5SEL = 0xFF;\r
 170         \r
 171         /* Initialise all segments to off. */\r
 172         LCDM1 = partstSEGMENTS_OFF;     \r
 173         LCDM2 = partstSEGMENTS_OFF;     \r
 174         LCDM3 = partstSEGMENTS_OFF;     \r
 175         LCDM4 = partstSEGMENTS_OFF;     \r
 176         LCDM5 = partstSEGMENTS_OFF;     \r
 177         LCDM6 = partstSEGMENTS_OFF;     \r
 178         LCDM7 = partstSEGMENTS_OFF;     \r
 179         LCDM8 = partstSEGMENTS_OFF;     \r
 180         LCDM9 = partstSEGMENTS_OFF;     \r
 181         LCDM10 = partstSEGMENTS_OFF;    \r
 182         LCDM11 = partstSEGMENTS_OFF;    \r
 183         LCDM12 = partstSEGMENTS_OFF;    \r
 184         LCDM13 = partstSEGMENTS_OFF;    \r
 185         LCDM14 = partstSEGMENTS_OFF;    \r
 186         LCDM15 = partstSEGMENTS_OFF;    \r
 187         LCDM16 = partstSEGMENTS_OFF;    \r
 188         LCDM17 = partstSEGMENTS_OFF;    \r
 189         LCDM18 = partstSEGMENTS_OFF;    \r
 190         LCDM19 = partstSEGMENTS_OFF;    \r
 191         LCDM20 = partstSEGMENTS_OFF;    \r
 192 \r
 193         /* Setup LCD control. */\r
 194         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 195 }\r
 196 /*-----------------------------------------------------------*/\r
 197 \r
 198 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 199 {\r
 200         /* Set or clear the output [in this case show or hide the '*' character. */\r
 201         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 202         {\r
 203                 vTaskSuspendAll();\r
 204                 {\r
 205                         if( xValue )\r
 206                         {\r
 207                                 /* Turn on the segments required to show the '*'. */\r
 208                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 209                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 210                         }\r
 211                         else\r
 212                         {\r
 213                                 /* Turn off all the segments. */\r
 214                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 215                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 216                         }\r
 217                 }\r
 218                 xTaskResumeAll();\r
 219         }\r
 220 }\r
 221 /*-----------------------------------------------------------*/\r
 222 \r
 223 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 224 {\r
 225         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 226         {\r
 227                 vTaskSuspendAll();\r
 228                 {\r
 229                         /* If the '*' is already showing - hide it.  If it is not already\r
 230                         showing then show it. */\r
 231                         if( *( ucRHSSegments[ uxLED ] ) )\r
 232                         {\r
 233                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 234                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 235                         }\r
 236                         else\r
 237                         {\r
 238                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 239                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 240                         }\r
 241                 }\r
 242                 xTaskResumeAll();\r
 243         }\r
 244         else\r
 245         {\r
 246                 if( uxLED == partstON_BOARD_LED )\r
 247                 {\r
 248                         /* The request related to the genuine on board LED. */\r
 249                         prvToggleOnBoardLED();\r
 250                 }\r
 251         }       \r
 252 }\r
 253 /*-----------------------------------------------------------*/\r
 254 \r
 255 static void prvToggleOnBoardLED( void )\r
 256 {\r
 257 static unsigned short sState = pdFALSE;\r
 258 \r
 259         /* Toggle the state of the single genuine on board LED. */\r
 260         if( sState )    \r
 261         {\r
 262                 P1OUT |= mainON_BOARD_LED_BIT;\r
 263         }\r
 264         else\r
 265         {\r
 266                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 267         }\r
 268 \r
 269         sState = !sState;\r
 270 }\r
 271 /*-----------------------------------------------------------*/\r
 272 \r
 273 \r